54 ccZero (public domain) sounds culled from ccMixter’s archives.

44k 16b mono.

You do not need to credit the artists for these sounds (including this collection), but if you would like to thank the artists and/or tell them how you used it, the source pages are listed under “Uses samples from,” so you can click on the one you’re looking for.

Important:
If you intend to register any original works of yours with the government that use public domain sounds, you must indicate them in the application process (limit of claims section) because you cannot copyright public domain sounds.